quantum size effects[¦kwänt·əm ′sīz i‚feks] (solid-state physics) Unusual properties of extremely small crystals that arise from confinement of electrons to small regions of space in one, two, or three dimensions.McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, ...
The results of theoretical and experimental investigations of the quantum size effect in thin films are presented. The locations of the extrema of the size sub-bands and of the Tamm surface states are calculated as functions of the film thickness. A new length R is introduced which characterizes...
We have studied the quantum Hall effect in restricted dimensions and observed striking changes in its characteristic features.doi:10.1016/0039-6028(86)90963-5H.Z. ZhengElsevier B.V.Surface ScienceZheng, H.Z., Choi, K.K., Tsui, D.C., Weimann, G.: Surf. Sci. 170 (1986) 209.Z1. ...
I. Quantum Size Effects in the Optical Properties of Small Metallic Particles. I. Hartree-Fock Variational Treatment of Structural Properties of Molecular and Metallic Hydrogen at High Pressures In Part I classical light absorption by a dilute, random collection of metallic spheres small in comparison...
A method is presented to obtain a simplified dielectric function for thin films, incorporating quantum-size effects for electron-hole pairs excitations. By a proper generalisation to spheres, we analyse the photoabsorption of these systems. Our results show interesting quantum-size effects associated wi...
The quantum Hall effect (QHE) is traditionally considered to be a purely two-dimensional (2D) phenomenon. Recently, however, a three-dimensional (3D) version of the QHE was reported in the Dirac semimetal ZrTe5. It was proposed to arise from a magnetic-field-driven Fermi surface instability...
On forward biasing, the bn junction showed a step-like behavior, which could be a direct demonstration of the quantum size effects (QSE) exhibited by these clusters. This effect can be assigned either to the enhancement of the collective Coulomb blockade phenomenon occurring in the quantum dots ...
The nonlinear Hall effect has a quantum nature because of its connection with the Berry curvature dipole. The Berry curvature can be regarded as a magnetic field in parameter space (e.g., momentum space). It describes the bending of parameter spaces, arising from the geometric structure of qua...
As the field further expands, the various quantum (whorls) begin to separate and the interaction with its neighbors becomes less distinct. Each quantum continues to have the same energy but its neighbors contribute less and less to its effect when exposed to a detector, unless lenses or antennas...
Full size image Another nonclassical property that we examine in this section is the signal-to-quantum noise ratio which the x-component of it in an arbitrary normalized state is defined by $$\begin{aligned} \sigma ^{(x)}=\frac{{\langle x\rangle }^2}{{\langle x^2\rangle }-{\langle...